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The Single UNIX &reg; Specification, Version 2<br>
Copyright &copy; 1997 The Open Group

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<h4><a name = "tag_000_010_563">&nbsp;</a>NAME</h4><blockquote>
wcsncpy - copy part of a wide-character string
</blockquote><h4><a name = "tag_000_010_564">&nbsp;</a>SYNOPSIS</h4><blockquote>
<pre><code>

#include &lt;<a href="wchar.h.html">wchar.h</a>&gt;

wchar_t *wcsncpy(wchar_t *<i>ws1</i>, const wchar_t *<i>ws2</i>, size_t <i>n</i>);
</code>
</pre>
</blockquote><h4><a name = "tag_000_010_565">&nbsp;</a>DESCRIPTION</h4><blockquote>
The
<i>wcsncpy()</i>
function copies not more than
<i>n</i>
wide-character codes (wide-character codes that follow a null
wide-character code are not copied) from the array pointed to by
<i>ws2</i>
to the array pointed to by
<i>ws1</i>.
If copying takes place between objects that overlap, the
behaviour is undefined.
<p>
If the array pointed to by
<i>ws2</i>
is a wide-character string that is shorter than
<i>n</i>
wide-character codes, null wide-character codes are appended to the
copy in the array
pointed to by
<i>ws1</i>,
until
<i>n</i>
wide-character codes in all are written.
</blockquote><h4><a name = "tag_000_010_566">&nbsp;</a>RETURN VALUE</h4><blockquote>
The
<i>wcsncpy()</i>
function returns
<i>ws1</i>;
no return value is reserved to indicate an error.
</blockquote><h4><a name = "tag_000_010_567">&nbsp;</a>ERRORS</h4><blockquote>
No errors are defined.
</blockquote><h4><a name = "tag_000_010_568">&nbsp;</a>EXAMPLES</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_010_569">&nbsp;</a>APPLICATION USAGE</h4><blockquote>
Wide-character code movement is performed differently in different
implementations.  Thus overlapping moves may yield surprises.
<p>
If there is no null wide-character code in the first
<i>n</i>
wide-character codes of the array pointed to by
<i>ws2</i>,
the result will not be null-terminated.
</blockquote><h4><a name = "tag_000_010_570">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_010_571">&nbsp;</a>SEE ALSO</h4><blockquote>
<i><a href="wcscpy.html">wcscpy()</a></i>,
<i><a href="wchar.h.html">&lt;wchar.h&gt;</a></i>.
</blockquote><h4>DERIVATION</h4><blockquote>
Derived from the MSE working draft.
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UNIX &reg; is a registered Trademark of The Open Group.<br>
Copyright &copy; 1997 The Open Group
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